using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Tango.Transport.Compression
{
    public static class GZipHelper
    {
        public static byte[] Compress(byte[] buffer)
        {
            using (MemoryStream ms = new MemoryStream())
            {
                using (GZipStream zip = new GZipStream(ms, CompressionMode.Compress, true))
                {
                    zip.Write(buffer, 0, buffer.Length);
                }

                return ms.ToArray();
            }
        }

        public static byte[] Decompress(byte[] gzBuffer)
        {
            using (MemoryStream msOut = new MemoryStream())
            {
                using (MemoryStream ms = new MemoryStream(gzBuffer))
                {
                    using (GZipStream zip = new GZipStream(ms, CompressionMode.Decompress))
                    {
                        zip.CopyTo(msOut);
                    }
                }

                return msOut.ToArray();
            }
        }
    }
}